Why is it said that "music is fluid architecture and architecture is solid music"?

The reason why it is said that "music is flowing architecture, architecture is solid music" is because:

Music and architecture both put creation on proportion and structure. They are inseparable from mathematical calculations, not only a complete structure, but also a unified layout, the pursuit of harmony, symmetry, balance and beauty of the line, but the music is unfolding changes in time, while the building is flowing in space.

Expanded:

The Forbidden City that the courtyard of the deep temple, like a song of the aftermath, The Forbidden City, the deep courtyard of the temple is like a curling, seemingly intermittent music of the guqin; to the Suzhou gardens to play in the mountains, as if a beautiful and moving Jiangnan silk bamboo; in front of the eyes of the Parliament Building in Budapest, the ear comes from the classical school of melody; and Versailles Palace in Paris, is reminiscent of the Baroque music of the sunshine.

This Baroque music and Baroque architecture is very similar, with a refined and gorgeous art style, music embodies the unchanging fixed beat and a single emotional color, not more than the classical or romantic music to get rich and brilliant. Baroque music gives people the feeling, like being in the Baroque building, it's the glorious trends of the arcade, variegated vaults, ornate decorations and carvings, let a person produce a kind of grandeur and feelings of awe, the individual also appears to be small and insignificant to cut the peace of mind and do not have to be concerned about.